EP0318257A3 - Coil arrangements for magnetic resonance apparatus - Google Patents

Coil arrangements for magnetic resonance apparatus Download PDF

Info

Publication number: EP0318257A3
Authority: EP; European Patent Office
Prior art keywords: magnetic resonance; resonance apparatus; coil arrangements; arrangements; coil
Prior art date: 1987-11-25
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP88311061A

Other versions

EP0318257B1 (en

EP0318257A2 (en

Inventor

Ian Robert Young

Alasdair Stewart Hall

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

General Electric Co PLC

Original Assignee

General Electric Co PLC

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1987-11-25

Filing date

1988-11-23

Publication date

1990-07-04

1988-11-23 Application filed by General Electric Co PLC filed Critical General Electric Co PLC

1989-05-31 Publication of EP0318257A2 publication Critical patent/EP0318257A2/en

1990-07-04 Publication of EP0318257A3 publication Critical patent/EP0318257A3/en

1994-09-14 Application granted granted Critical

1994-09-14 Publication of EP0318257B1 publication Critical patent/EP0318257B1/en

2008-11-23 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
- G01R33/34061—Helmholtz coils
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/383—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using permanent magnets
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/34007—Manufacture of RF coils, e.g. using printed circuit board technology; additional hardware for providing mechanical support to the RF coil assembly or to part thereof, e.g. a support for moving the coil assembly relative to the remainder of the MR system
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/34084—Constructional details, e.g. resonators, specially adapted to MR implantable coils or coils being geometrically adaptable to the sample, e.g. flexible coils or coils comprising mutually movable parts

EP88311061A 1987-11-25 1988-11-23 Coil arrangements for magnetic resonance apparatus Expired - Lifetime EP0318257B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB8727611		1987-11-25
GB878727611A GB8727611D0 (en)	1987-11-25	1987-11-25	Coil arrangements for magnetic resonance apparatus

Publications (3)

Publication Number	Publication Date
EP0318257A2 EP0318257A2 (en)	1989-05-31
EP0318257A3 true EP0318257A3 (en)	1990-07-04
EP0318257B1 EP0318257B1 (en)	1994-09-14

Family

ID=10627533

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP88311061A Expired - Lifetime EP0318257B1 (en)	1987-11-25	1988-11-23	Coil arrangements for magnetic resonance apparatus

Country Status (5)

Country	Link
US (1)	US4882560A (en)
EP (1)	EP0318257B1 (en)
JP (1)	JPH021252A (en)
DE (1)	DE3851510T2 (en)
GB (1)	GB8727611D0 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4897604A (en) *	1989-02-21	1990-01-30	The Regents Of The University Of California	Method and apparatus for selective adjustment of RF coil size for magnetic resonance imaging
DE4232884C2 (en) *	1992-09-30	1997-10-16	Siemens Ag	Antenna arrangement for a nuclear magnetic resonance device
JPH06121779A (en) *	1992-10-12	1994-05-06	Toshiba Corp	Magnetic resonance imaging device
US5457387A (en) *	1993-07-06	1995-10-10	Picker International, Inc.	Magnetic resonance imager with removable element RF coil
US5939883A (en) *	1996-07-17	1999-08-17	Fonar Corporation	Magnetic resonance imaging excitation and reception methods and apparatus
US6272370B1 (en)	1998-08-07	2001-08-07	The Regents Of University Of Minnesota	MR-visible medical device for neurological interventions using nonlinear magnetic stereotaxis and a method imaging
US6463317B1 (en)	1998-05-19	2002-10-08	Regents Of The University Of Minnesota	Device and method for the endovascular treatment of aneurysms
DE10107867A1 (en) *	2001-02-20	2002-09-05	Philips Corp Intellectual Pty	Magnetic resonance imaging device with an open magnet system
EP1716427B1 (en) *	2004-02-09	2018-12-26	Koninklijke Philips N.V.	An rf coil system for an mri system with a fixed and a moving part
DE102005021621A1 (en) *	2005-05-05	2006-11-16	Hubert Noras	Receiver coil holder for an MR imaging system
TW202015621A (en)	2018-07-19	2020-05-01	美商超精細研究股份有限公司	Methods and apparatus for patient positioning in magnetic resonance imaging

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2056086A (en) *	1979-08-10	1981-03-11	Emi Ltd	Improvements in or relating to imaging systems
DE3323657A1 (en) *	1982-07-07	1984-01-12	Instrumentarium Oy, 00101 Helsinki	COIL ARRANGEMENT
EP0135326A2 (en) *	1983-08-12	1985-03-27	Picker International Limited	Nuclear magnetic resonance apparatus
EP0142760A2 (en) *	1983-11-14	1985-05-29	General Electric Company	Inductively coupled multi-section radio frequency field coil for NMR
EP0154360A1 (en) *	1984-02-03	1985-09-11	Koninklijke Philips Electronics N.V.	Coil for nuclear mangnetic resonance apparatus
DE3635006A1 (en) *	1985-10-14	1987-04-23	Toshiba Kawasaki Kk	PROBE FOR A MAGNETIC RESONANCE IMAGING DEVICE

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3123493A1 (en) *	1981-06-13	1982-12-30	Bruker Analytische Meßtechnik GmbH, 7512 Rheinstetten	ELECTROMAGNET FOR NMR TOMOGRAPHY
GB8321769D0 (en) *	1983-08-12	1983-09-14	Picker Int Ltd	Nuclear magnetic resonance apparatus
GB8329196D0 (en) *	1983-11-02	1983-12-07	Bydder G M	Nuclear magnetic resonance apparatus
JPS62112305A (en) *	1985-11-12	1987-05-23	Hitachi Medical Corp	Nuclear magnetic resonance imaging device
JPS6350003A (en) *	1986-08-20	1988-03-02	Toshiba Corp	Magnet device for magnetic resonance imaging apparatus

1987
- 1987-11-25 GB GB878727611A patent/GB8727611D0/en active Pending
1988
- 1988-11-22 US US07/274,827 patent/US4882560A/en not_active Expired - Fee Related
- 1988-11-23 DE DE3851510T patent/DE3851510T2/en not_active Expired - Fee Related
- 1988-11-23 EP EP88311061A patent/EP0318257B1/en not_active Expired - Lifetime
- 1988-11-25 JP JP63298014A patent/JPH021252A/en active Pending

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2056086A (en) *	1979-08-10	1981-03-11	Emi Ltd	Improvements in or relating to imaging systems
DE3323657A1 (en) *	1982-07-07	1984-01-12	Instrumentarium Oy, 00101 Helsinki	COIL ARRANGEMENT
EP0135326A2 (en) *	1983-08-12	1985-03-27	Picker International Limited	Nuclear magnetic resonance apparatus
EP0142760A2 (en) *	1983-11-14	1985-05-29	General Electric Company	Inductively coupled multi-section radio frequency field coil for NMR
EP0154360A1 (en) *	1984-02-03	1985-09-11	Koninklijke Philips Electronics N.V.	Coil for nuclear mangnetic resonance apparatus
DE3635006A1 (en) *	1985-10-14	1987-04-23	Toshiba Kawasaki Kk	PROBE FOR A MAGNETIC RESONANCE IMAGING DEVICE

Also Published As

Publication number	Publication date
DE3851510D1 (en)	1994-10-20
GB8727611D0 (en)	1987-12-31
EP0318257B1 (en)	1994-09-14
DE3851510T2 (en)	1995-02-02
JPH021252A (en)	1990-01-05
US4882560A (en)	1989-11-21
EP0318257A2 (en)	1989-05-31

Legal Events

Date	Code	Title	Description
1989-04-15	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1989-05-31	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE FR GB NL
1990-05-15	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1990-07-04	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): DE FR GB NL
1991-01-16	17P	Request for examination filed	Effective date: 19901114
1993-04-07	17Q	First examination report despatched	Effective date: 19930219
1994-07-29	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1994-09-14	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE FR GB NL
1994-09-30	ET	Fr: translation filed
1994-10-20	REF	Corresponds to:	Ref document number: 3851510 Country of ref document: DE Date of ref document: 19941020
1995-07-15	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1995-07-15	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1995-09-06	26N	No opposition filed
1995-10-02	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19951002 Year of fee payment: 8
1996-10-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19961030 Year of fee payment: 9
1996-11-23	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19961123
1996-11-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19961130 Year of fee payment: 9
1997-01-29	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19970129 Year of fee payment: 9
1997-07-16	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19961123
1997-11-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19971130
1998-06-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980601
1998-08-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980801
1998-08-03	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee	Effective date: 19980601
1998-10-02	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST

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